---
title: kAudioUnitScope_Note
framework: audiotoolbox
role: symbol
role_heading: Global Variable
path: audiotoolbox/kaudiounitscope_note
---

# kAudioUnitScope_Note

In macOS, a scope for changes to an individual musical note. The element identifier used with this scope is the unique note identifier returned from a started note (see the MusicDeviceStartNote function in AudioUnit/MusicDevice.h).

## Declaration

```swift
var kAudioUnitScope_Note: AudioUnitScope { get }
```

## See Also

### Constants

- [kAudioUnitScope_Global](audiotoolbox/kaudiounitscope_global.md)
- [kAudioUnitScope_Group](audiotoolbox/kaudiounitscope_group.md)
- [kAudioUnitScope_Input](audiotoolbox/kaudiounitscope_input.md)
- [kAudioUnitScope_Layer](audiotoolbox/kaudiounitscope_layer.md)
- [kAudioUnitScope_LayerItem](audiotoolbox/kaudiounitscope_layeritem.md)
- [kAudioUnitScope_Output](audiotoolbox/kaudiounitscope_output.md)
- [kAudioUnitScope_Part](audiotoolbox/kaudiounitscope_part.md)